Summary

Experiments are the plot that holds the story of biology together. ASKING ABOUT LIFE uses the process of experimentation to describe the scientific process and to illustrate the personal and professional motives that drive scientists to work so hard at asking and answering questions. In this important revision, the authors continue to use thought-provoking chapter-opening stories to engage students in the process of science. At the same time, they focus on making the text more accessible through streamlined coverage (100 fewer pages in this edition) and a refined organization and design. New features make it easier for students to remember the main ideas. For example, Key Questions begin each chapter, main headings are numbered to make it easier for students to locate previously read information, and Chapter Summaries are organized around Key Questions. All these features provide consistency throughout each chapter. Student support is also a main focus. A student CD-ROM, BiologyNow, packaged FREE with each copy of the text includes questions created around the text's opening stories and uses diagnostic pre-tests to generate a personalized learning plan for each student. Students also receive FREE access to InfoTrac- College Edition, an online university library with articles from 5,000 periodicals. vMentor, a FREE online live tutoring service rounds this powerful student supplements package. For instructors, a Multimedia Manager provides all the text art in PowerPoint- form, as well as a great Instructor's Guide, an Electronic Test Bank, and WebTutor course management options. Instructors will receive CNN clips in the multimedia manager but the full set of CNN- Today video clips (294 in all) is available to adopters as well. Updated throughout, the Third Edition captures the terrific excitement of current 21st century science and is accompanied by powerful new learning tools that expand the text's themes.

Benefits:

Provides students with an understanding of basic concepts and promotes thinking in terms of concepts and critical thinking rather than memorization. This is guided and reinforced by Key Questions at the start of each chapter; outlines of the material covered by the Key Questions in each end-of-chapter Summary; and many headings in the form of questions.

NEW!-Conceptual Illustrations (one of strongest points in previous edition) have been improved even more and can be found throughout this edition.

NEW!-A Multimedia Manager provides the ultimate presentation tool on Microsoft- PowerPoint- slides. All the illustrations and figures from the text, plus several animations are available on this CD-ROM. A unique segmentation feature allows instructors to select a piece of a figure and blow it up to show more detail. The figures can also be drawn on to highlight ideas during lecture.

NEW!-The content-rich Web site for this text completes the superb technology package accompanying the Tobin/Dusheck text. The Web site offers a wide variety of quizzes and exercises that can be assigned. For example, chapter-specific quizzing, InfoTrac College Edition articles with questions, Internet Activities with questions, and Opposing Viewpoints Resource Center (OVRC) Exercises with questions are available. In addition, students will find a wide variety of resources they can use on their own for practice and review, including, chapter summaries, chapter quizzes, learning objectives, a glossary complete with pronunciations, and annotated Web links. Small group activities added to the Web provide opportunities for active learning.

NEW!-A Resource Integration Guide provides a chapter-by-chapter list of supplements that can be easily integrated into lecture and homework plans. This is a great tool for part-time and adjunct faculty.

NEW!-vMentor, a FREE online live tutoring service, provides students with one-on-one tutoring for daily homework or exams with a biology tutor working from ASKING ABOUT LIFE Third Edition. Access is provided with vClass, an Internet-based virtual classroom featuring two-way voice, a shared whiteboard, chat, and more. Access to this live online tutoring service, vMentor, is also available through BiologyNow.

Contains compelling narrative, which inspires students to grasp current 21st century science and become excited about it. Every chapter-opening story contains an example of this narrative.

The use of visual metaphors, art, and chapter opening stories are still one this titles most highly praised assets.

The organization of the book also continues to meet the needs of introductory biology courses. The first 5 parts concentrate on the key interwoven ideas of genetics, evolution, and ecology; parts 6 and 7 cover plant and animal structure and function. This reflects the way most instructors teach the course. In contrast, other texts delay ecology until the very end.

NEW!-Content and art have been revised and refined throughout, which has lead to a reduced amount of detail. The content and length are now truly accessible for the non-majors course.

NEW!-Part VII (Structural and Physiological Adaptations of Animals) has been streamlined and updated, and most of the art has been revised; examples include a new "Health and Biology" box on osteoporosis in Chapter 35, and a new chapter opening story on SARS in Chapter 41.

NEW!-The most up-to-date thinking in biology today is reflected throughout the text. For example, the presentation of domains and kingdoms has been revised and updated. Other new information includes the connection between vampire bat behavior and game theory (Chapter 29), the rapid identification of the SARS virus (Chapter 41), and interfering RNA (Chapter 14).

NEW!-A new free Student CD-ROM, BiologyNow, is a powerful learning tool that helps students assess their unique study needs. After taking a diagnostic pre-test, the program creates a personalized learning plan that links them to a number of additional resources and textual references. BiologyNow is based on Key Questions from the text, focusing on the most important topics while supporting the book's process of science theme. After students study the personalized resources of the system, they can take a post-test to determine their mastery of the core materials.

NEW!-Boxed information is organized into three types: Business and Biology, Health and Biology, and Extreme Biology. Through the enhanced design, the great stories, and terrific excitement surrounding current 21st century, science is now more than ever the focal point of ASKING ABOUT LIFE.

Table of Contents

Part I: Chemistry and Cell Biology.

1. How Do Biologists Study Life? 2. The Chemical Foundations of Life. 3. Biological Molecules Great and Small. 4. Why Are All Organisms Made of Cells? 5. Directions and Rates of Biochemical Processes. 6. How Do Organisms Supply Themselves with Energy? 7. Photosynthesis: How Do Organisms Get Energy from the Sun?

15. What Is the Evidence for Evolution? 16. Microevolution: How Do Populations Evolve? 17. Macroevolution: How Do Species Evolve? 18. How Did the First Organisms Evolve?

Part IV: Diversity.

19. Classification: What''s in a Name? 20. Prokaryotes: How Does the Other Half live? 21. Classifying the Protists and Multicellular Fungi. 22. How Did Plants Adapt to Dry Land? 23. Protostome Animals: Most Animals Form Mouth First. 24. Deuterostome Animals: Echinoderms and Chordates.

Part VI: Structural and Physiological Adaptations of Flowering Plants.

30. Structural and Chemical Adaptations of Plants. 31. How Do Plants Move Water and Sugars? 32. Growth and Development of Flowering Plants. 33. How Do Plants Respond to Their Environment?

Part VII: Structural and Physiological Adaptations of Animals.

34. Form and Function in Animals. 35. How Do Animals Move? 36. How Do Animals Obtain Nourishment from Food? 37. How Do Animals Coordinate the Actions of Cells and Organs? 38. How Do Animals Move Blood Through Their Bodies? 39. How Do Animals Breathe? 40. How Do Animals Manage Water, Sales, and Wastes? 41. Defense: Inflammation and Immunity. 42. The Nervous System and the Sense Organs. 43. The Cells of the Nervous System. 44. Sexual Reproduction. 45. How Do Organisms Become Complete?

Other Editions of Asking About Life - With CD

Experiments are the plot that holds the story of biology together. ASKING ABOUT LIFE uses the process of experimentation to describe the scientific process and to illustrate the personal and professional motives that drive scientists to work so hard at asking and answering questions. In this important revision, the authors continue to use thought-provoking chapter-opening stories to engage students in the process of science. At the same time, they focus on making the text more accessible through streamlined coverage (100 fewer pages in this edition) and a refined organization and design. New features make it easier for students to remember the main ideas. For example, Key Questions begin each chapter, main headings are numbered to make it easier for students to locate previously read information, and Chapter Summaries are organized around Key Questions. All these features provide consistency throughout each chapter. Student support is also a main focus. A student CD-ROM, BiologyNow, packaged FREE with each copy of the text includes questions created around the text's opening stories and uses diagnostic pre-tests to generate a personalized learning plan for each student. Students also receive FREE access to InfoTrac- College Edition, an online university library with articles from 5,000 periodicals. vMentor, a FREE online live tutoring service rounds this powerful student supplements package. For instructors, a Multimedia Manager provides all the text art in PowerPoint- form, as well as a great Instructor's Guide, an Electronic Test Bank, and WebTutor course management options. Instructors will receive CNN clips in the multimedia manager but the full set of CNN- Today video clips (294 in all) is available to adopters as well. Updated throughout, the Third Edition captures the terrific excitement of current 21st century science and is accompanied by powerful new learning tools that expand the text's themes.

Benefits:

Provides students with an understanding of basic concepts and promotes thinking in terms of concepts and critical thinking rather than memorization. This is guided and reinforced by Key Questions at the start of each chapter; outlines of the material covered by the Key Questions in each end-of-chapter Summary; and many headings in the form of questions.

NEW!-Conceptual Illustrations (one of strongest points in previous edition) have been improved even more and can be found throughout this edition.

NEW!-A Multimedia Manager provides the ultimate presentation tool on Microsoft- PowerPoint- slides. All the illustrations and figures from the text, plus several animations are available on this CD-ROM. A unique segmentation feature allows instructors to select a piece of a figure and blow it up to show more detail. The figures can also be drawn on to highlight ideas during lecture.

NEW!-The content-rich Web site for this text completes the superb technology package accompanying the Tobin/Dusheck text. The Web site offers a wide variety of quizzes and exercises that can be assigned. For example, chapter-specific quizzing, InfoTrac College Edition articles with questions, Internet Activities with questions, and Opposing Viewpoints Resource Center (OVRC) Exercises with questions are available. In addition, students will find a wide variety of resources they can use on their own for practice and review, including, chapter summaries, chapter quizzes, learning objectives, a glossary complete with pronunciations, and annotated Web links. Small group activities added to the Web provide opportunities for active learning.

NEW!-A Resource Integration Guide provides a chapter-by-chapter list of supplements that can be easily integrated into lecture and homework plans. This is a great tool for part-time and adjunct faculty.

NEW!-vMentor, a FREE online live tutoring service, provides students with one-on-one tutoring for daily homework or exams with a biology tutor working from ASKING ABOUT LIFE Third Edition. Access is provided with vClass, an Internet-based virtual classroom featuring two-way voice, a shared whiteboard, chat, and more. Access to this live online tutoring service, vMentor, is also available through BiologyNow.

Contains compelling narrative, which inspires students to grasp current 21st century science and become excited about it. Every chapter-opening story contains an example of this narrative.

The use of visual metaphors, art, and chapter opening stories are still one this titles most highly praised assets.

The organization of the book also continues to meet the needs of introductory biology courses. The first 5 parts concentrate on the key interwoven ideas of genetics, evolution, and ecology; parts 6 and 7 cover plant and animal structure and function. This reflects the way most instructors teach the course. In contrast, other texts delay ecology until the very end.

NEW!-Content and art have been revised and refined throughout, which has lead to a reduced amount of detail. The content and length are now truly accessible for the non-majors course.

NEW!-Part VII (Structural and Physiological Adaptations of Animals) has been streamlined and updated, and most of the art has been revised; examples include a new "Health and Biology" box on osteoporosis in Chapter 35, and a new chapter opening story on SARS in Chapter 41.

NEW!-The most up-to-date thinking in biology today is reflected throughout the text. For example, the presentation of domains and kingdoms has been revised and updated. Other new information includes the connection between vampire bat behavior and game theory (Chapter 29), the rapid identification of the SARS virus (Chapter 41), and interfering RNA (Chapter 14).

NEW!-A new free Student CD-ROM, BiologyNow, is a powerful learning tool that helps students assess their unique study needs. After taking a diagnostic pre-test, the program creates a personalized learning plan that links them to a number of additional resources and textual references. BiologyNow is based on Key Questions from the text, focusing on the most important topics while supporting the book's process of science theme. After students study the personalized resources of the system, they can take a post-test to determine their mastery of the core materials.

NEW!-Boxed information is organized into three types: Business and Biology, Health and Biology, and Extreme Biology. Through the enhanced design, the great stories, and terrific excitement surrounding current 21st century, science is now more than ever the focal point of ASKING ABOUT LIFE.

1. How Do Biologists Study Life? 2. The Chemical Foundations of Life. 3. Biological Molecules Great and Small. 4. Why Are All Organisms Made of Cells? 5. Directions and Rates of Biochemical Processes. 6. How Do Organisms Supply Themselves with Energy? 7. Photosynthesis: How Do Organisms Get Energy from the Sun?

15. What Is the Evidence for Evolution? 16. Microevolution: How Do Populations Evolve? 17. Macroevolution: How Do Species Evolve? 18. How Did the First Organisms Evolve?

Part IV: Diversity.

19. Classification: What''s in a Name? 20. Prokaryotes: How Does the Other Half live? 21. Classifying the Protists and Multicellular Fungi. 22. How Did Plants Adapt to Dry Land? 23. Protostome Animals: Most Animals Form Mouth First. 24. Deuterostome Animals: Echinoderms and Chordates.

Part VI: Structural and Physiological Adaptations of Flowering Plants.

30. Structural and Chemical Adaptations of Plants. 31. How Do Plants Move Water and Sugars? 32. Growth and Development of Flowering Plants. 33. How Do Plants Respond to Their Environment?

Part VII: Structural and Physiological Adaptations of Animals.

34. Form and Function in Animals. 35. How Do Animals Move? 36. How Do Animals Obtain Nourishment from Food? 37. How Do Animals Coordinate the Actions of Cells and Organs? 38. How Do Animals Move Blood Through Their Bodies? 39. How Do Animals Breathe? 40. How Do Animals Manage Water, Sales, and Wastes? 41. Defense: Inflammation and Immunity. 42. The Nervous System and the Sense Organs. 43. The Cells of the Nervous System. 44. Sexual Reproduction. 45. How Do Organisms Become Complete?

Summary

Experiments are the plot that holds the story of biology together. ASKING ABOUT LIFE uses the process of experimentation to describe the scientific process and to illustrate the personal and professional motives that drive scientists to work so hard at asking and answering questions. In this important revision, the authors continue to use thought-provoking chapter-opening stories to engage students in the process of science. At the same time, they focus on making the text more accessible through streamlined coverage (100 fewer pages in this edition) and a refined organization and design. New features make it easier for students to remember the main ideas. For example, Key Questions begin each chapter, main headings are numbered to make it easier for students to locate previously read information, and Chapter Summaries are organized around Key Questions. All these features provide consistency throughout each chapter. Student support is also a main focus. A student CD-ROM, BiologyNow, packaged FREE with each copy of the text includes questions created around the text's opening stories and uses diagnostic pre-tests to generate a personalized learning plan for each student. Students also receive FREE access to InfoTrac- College Edition, an online university library with articles from 5,000 periodicals. vMentor, a FREE online live tutoring service rounds this powerful student supplements package. For instructors, a Multimedia Manager provides all the text art in PowerPoint- form, as well as a great Instructor's Guide, an Electronic Test Bank, and WebTutor course management options. Instructors will receive CNN clips in the multimedia manager but the full set of CNN- Today video clips (294 in all) is available to adopters as well. Updated throughout, the Third Edition captures the terrific excitement of current 21st century science and is accompanied by powerful new learning tools that expand the text's themes.

Benefits:

Provides students with an understanding of basic concepts and promotes thinking in terms of concepts and critical thinking rather than memorization. This is guided and reinforced by Key Questions at the start of each chapter; outlines of the material covered by the Key Questions in each end-of-chapter Summary; and many headings in the form of questions.

NEW!-Conceptual Illustrations (one of strongest points in previous edition) have been improved even more and can be found throughout this edition.

NEW!-A Multimedia Manager provides the ultimate presentation tool on Microsoft- PowerPoint- slides. All the illustrations and figures from the text, plus several animations are available on this CD-ROM. A unique segmentation feature allows instructors to select a piece of a figure and blow it up to show more detail. The figures can also be drawn on to highlight ideas during lecture.

NEW!-The content-rich Web site for this text completes the superb technology package accompanying the Tobin/Dusheck text. The Web site offers a wide variety of quizzes and exercises that can be assigned. For example, chapter-specific quizzing, InfoTrac College Edition articles with questions, Internet Activities with questions, and Opposing Viewpoints Resource Center (OVRC) Exercises with questions are available. In addition, students will find a wide variety of resources they can use on their own for practice and review, including, chapter summaries, chapter quizzes, learning objectives, a glossary complete with pronunciations, and annotated Web links. Small group activities added to the Web provide opportunities for active learning.

NEW!-A Resource Integration Guide provides a chapter-by-chapter list of supplements that can be easily integrated into lecture and homework plans. This is a great tool for part-time and adjunct faculty.

NEW!-vMentor, a FREE online live tutoring service, provides students with one-on-one tutoring for daily homework or exams with a biology tutor working from ASKING ABOUT LIFE Third Edition. Access is provided with vClass, an Internet-based virtual classroom featuring two-way voice, a shared whiteboard, chat, and more. Access to this live online tutoring service, vMentor, is also available through BiologyNow.

Contains compelling narrative, which inspires students to grasp current 21st century science and become excited about it. Every chapter-opening story contains an example of this narrative.

The use of visual metaphors, art, and chapter opening stories are still one this titles most highly praised assets.

The organization of the book also continues to meet the needs of introductory biology courses. The first 5 parts concentrate on the key interwoven ideas of genetics, evolution, and ecology; parts 6 and 7 cover plant and animal structure and function. This reflects the way most instructors teach the course. In contrast, other texts delay ecology until the very end.

NEW!-Content and art have been revised and refined throughout, which has lead to a reduced amount of detail. The content and length are now truly accessible for the non-majors course.

NEW!-Part VII (Structural and Physiological Adaptations of Animals) has been streamlined and updated, and most of the art has been revised; examples include a new "Health and Biology" box on osteoporosis in Chapter 35, and a new chapter opening story on SARS in Chapter 41.

NEW!-The most up-to-date thinking in biology today is reflected throughout the text. For example, the presentation of domains and kingdoms has been revised and updated. Other new information includes the connection between vampire bat behavior and game theory (Chapter 29), the rapid identification of the SARS virus (Chapter 41), and interfering RNA (Chapter 14).

NEW!-A new free Student CD-ROM, BiologyNow, is a powerful learning tool that helps students assess their unique study needs. After taking a diagnostic pre-test, the program creates a personalized learning plan that links them to a number of additional resources and textual references. BiologyNow is based on Key Questions from the text, focusing on the most important topics while supporting the book's process of science theme. After students study the personalized resources of the system, they can take a post-test to determine their mastery of the core materials.

NEW!-Boxed information is organized into three types: Business and Biology, Health and Biology, and Extreme Biology. Through the enhanced design, the great stories, and terrific excitement surrounding current 21st century, science is now more than ever the focal point of ASKING ABOUT LIFE.

Table of Contents

Table of Contents

Part I: Chemistry and Cell Biology.

1. How Do Biologists Study Life? 2. The Chemical Foundations of Life. 3. Biological Molecules Great and Small. 4. Why Are All Organisms Made of Cells? 5. Directions and Rates of Biochemical Processes. 6. How Do Organisms Supply Themselves with Energy? 7. Photosynthesis: How Do Organisms Get Energy from the Sun?

15. What Is the Evidence for Evolution? 16. Microevolution: How Do Populations Evolve? 17. Macroevolution: How Do Species Evolve? 18. How Did the First Organisms Evolve?

Part IV: Diversity.

19. Classification: What''s in a Name? 20. Prokaryotes: How Does the Other Half live? 21. Classifying the Protists and Multicellular Fungi. 22. How Did Plants Adapt to Dry Land? 23. Protostome Animals: Most Animals Form Mouth First. 24. Deuterostome Animals: Echinoderms and Chordates.

Part VI: Structural and Physiological Adaptations of Flowering Plants.

30. Structural and Chemical Adaptations of Plants. 31. How Do Plants Move Water and Sugars? 32. Growth and Development of Flowering Plants. 33. How Do Plants Respond to Their Environment?

Part VII: Structural and Physiological Adaptations of Animals.

34. Form and Function in Animals. 35. How Do Animals Move? 36. How Do Animals Obtain Nourishment from Food? 37. How Do Animals Coordinate the Actions of Cells and Organs? 38. How Do Animals Move Blood Through Their Bodies? 39. How Do Animals Breathe? 40. How Do Animals Manage Water, Sales, and Wastes? 41. Defense: Inflammation and Immunity. 42. The Nervous System and the Sense Organs. 43. The Cells of the Nervous System. 44. Sexual Reproduction. 45. How Do Organisms Become Complete?